Pith Number

pith:4N7HPTKZ

pith:2020:4N7HPTKZPMTYM4BVCVIBUPQX2C

not attested not anchored not stored refs pending

Parameter-controlled inserting constructions of constant dimension subspace codes

Hao Chen, Huimin Lao, Jian Weng, Xiaoqing Tan

arxiv:2008.09944 v1 · 2020-08-23 · cs.IT · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4N7HPTKZPMTYM4BVCVIBUPQX2C}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T01:29:18.981153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e37e77cd597b2786703515501a3e17d0a36b484565af53da1064d219c0eb1719

Aliases

arxiv: 2008.09944 · arxiv_version: 2008.09944v1 · doi: 10.48550/arxiv.2008.09944 · pith_short_12: 4N7HPTKZPMTY · pith_short_16: 4N7HPTKZPMTYM4BV · pith_short_8: 4N7HPTKZ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4N7HPTKZPMTYM4BVCVIBUPQX2C \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e37e77cd597b2786703515501a3e17d0a36b484565af53da1064d219c0eb1719

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d6c8701072620a8450bc80aaa13867fa94f4e5b8543d3297b4ab4f999ba3d10",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2020-08-23T02:43:58Z",
    "title_canon_sha256": "08ca7b3b216e71d9909c267dcf634dd57b8d2997d146dba5e4e64be6751d2863"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.09944",
    "kind": "arxiv",
    "version": 1
  }
}